on board air

does anyone know how or if the air conditioner pump can be converted to air compressor

I don't think it can. Iv heard old Volvo ones you can convert. York 210 iv used on my old bagged truck. They were awesome.

yes you can. several members on here have done it. search for it and it should be in one of there build threads.

Ran tons of them best set up I have made is hack off the ends at a strait point put a 1/2(I think) compression fitting adapter to 1/2 hydraulic line back to tank add check valve and drier. As my truck won't be daily driven I oil the compressor at start up and it's good for the day